82729408 has 28 divisors (see below), whose sum is σ = 164637720. Its totient is φ = 41245952.

The previous prime is 82729379. The next prime is 82729441. The reversal of 82729408 is 80492728.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23235 + ... + 26557.

Almost surely, 2^82729408 is an apocalyptic number.

It is an amenable number.

82729408 is a deficient number, since it is larger than the sum of its proper divisors (81908312).

82729408 is a wasteful number, since it uses less digits than its factorization.

82729408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724 (or 3714 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 82729408 is about 9095.5707902253. The cubic root of 82729408 is about 435.7325183704.

The spelling of 82729408 in words is "eighty-two million, seven hundred twenty-nine thousand, four hundred eight".